The French resort of Les Gets claims to be the first in Europe to ban smoking both on and off the slopes – except in five designated areas.
https://polyploid.net/blog/?p=ya5oeqf3f
https://udaan.org/i5h2gow.php 
The ban came into force on 17 December and Benjamin Mugnier, who is in charge of the project, said: “We want to showcase our number one asset which is the clean air of the mountain. This is why thousands of people visit us every year.”